CT-PET weighted image fusion for separately scanned whole body rat

CT-PET weighted image fusion for separately scanned whole body rat.

PURPOSE The limited resolution and lack of spatial information in positron emission tomography (PET) images require the complementary anatomic information from the computed tomography (CT) and/or magnetic resonance imaging (MRI). Therefore, multimodality image fusion techniques such as PET/CT are critical in mapping the functional images to structural images and thus facilitate the interpretati...

CT Attenuation Correction in PET/CT Image Fusion

This paper presents the results of evaluating the use of X-ray CT data for attenuation correction of PET data. This method of attenuation correction is intended for use with a combined volume-imaging PET/CT scanner for oncology. We discuss four possible methods of scaling the attenuation map from the CT energies to the required PET attenuation map at 511 keV. Results are presented on the testin...

Whole body diffusion weighted MRI vs FDG-PET/CT in patients with suspected lung cancer

Automatic anatomy recognition in whole-body PET/CT images.

PURPOSE Whole-body positron emission tomography/computed tomography (PET/CT) has become a standard method of imaging patients with various disease conditions, especially cancer. Body-wide accurate quantification of disease burden in PET/CT images is important for characterizing lesions, staging disease, prognosticating patient outcome, planning treatment, and evaluating disease response to ther...

Whole body MRI and PET/CT in haematological malignancies

The usefulness of whole body magnetic resonance imaging (MRI) and positron emission tomography (PET)/computed tomography (CT) in haematological malignancies is reviewed. PET/CT combining functional and anatomical information is currently a valuable tool in the management of patients with lymphoma, especially in the assessment of early treatment response. MRI is advantageous in evaluating bone m...